How often must inspection equipment be calibrated?

Inspection equipment must be calibrated once a month to ensure accuracy and reliability during vehicle inspections. Regular monthly calibration helps to maintain the integrity of the testing process by verifying that the equipment is functioning correctly and providing precise measurements. This frequency is crucial because even slight variations in measurement can lead to incorrect assessments of vehicle safety, which can have serious implications for public safety and compliance with state regulations. Adhering to this monthly schedule supports consistent quality control and compliance with Maryland's auto inspection standards.